On Wed, 22 Aug 2012 00:34:30 +0200 Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> Hi all, > > After Dave Airlie blew through a few days to track down a deadlock at boot-up > when handing over from the firmware fb to the kms/drm framebuffer driver (1), > I've > figured that lockdep /should/ have caught this. > > And indeed, by adding proper annotations to the console_lock it complains > about > the potential deadlock when exercising the entire driver life-cycle of just > one > fb driver (i.e. not even a handover required). While at it, I've replaced the > existing in_interrupt check with the more paranoid might_sleep. > > Comments, flames and review highly welcome. This will be an absolute godsend for DRI debugging. Definitely wants to go in. Alan
